A determination of the thick disk chemical abundance distribution: Implications for galaxy evolution
Open accessAbstract
We present a determination of the thick disk iron abundance distribution obtained from an in situ sample of F/G stars. These stars are faint, $15 \simlt V \simlt 18$, selected on the basis of color, being a subset of the larger survey of Gilmore and Wyse designed to determine the properties of the stellar populations several kiloparsecs from the Sun. The fields studied in the present paper probe the iron abundance distribution of the stellar populations of the Galaxy at 500--3000pc above the plane, at the solar Galactocentric distance.
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Thick disk stars organize themselves in a segregated sequence from thin disk stars in the solar neighborhood in [α/Fe] versus [Fe/H].
“More detailed high-resolution chemical elemental abundance studies demonstrated that thick disk stars organize themselves in a segregated sequence from that of the thin disk stars in the solar neighborhood in, for example, [α/Fe] versus [Fe/H] (Gilmore et al. 1995).”
From Streams, Substructures, and the Early History of the Milky Way (2020) · cites this paper as Gilmore et al. 1995
Section 4.3 (p. 17) describes continuity of element ratios between thick- and thin-disk stars and says the populations are plausibly chemically connected, rather than occupying segregated sequences. The paper reports its own iron-abundance distribution, not a separate [α/Fe]–[Fe/H] sequence for thick-disk stars. (LLM, conf=0.87)
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Research works printed but not linked: 3
- Aguilar, L., Carney, B., Latham, D. and Laird, J. 1994, AJ (in press)
- Jones, J.B., 1991, Ph.D. thesis, Univ of Wales, Cardiff
- Perrin, M.-N., Friel, E., Bienayme, O., Cayrel, R., Barbuy, B. and Boulon, J. 1994, A&A(in press)
Cited by
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SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH <i>g</i> = 14-20
Yanny, B., Rockosi, C., Newberg, H. J., Knapp, G. R., Adelman-McCarthy, J. K., Alcorn, B., Allam, S., Prieto, C. A., An, D., Anderson, K. S. J., et al. (2009) · The Astronomical Journal · doi:10.1088/0004-6256/137/5/4377 · Cited by 1,162 · see citing works
Self-citationThe Milky Way Tomography with SDSS. II. Stellar Metallicity
Ivezić, Ž., Sesar, B., Jurić, M., Bond, N., Dalcanton, J., Rockosi, C. M., Yanny, B., Newberg, H. J., Beers, T. C., Allende Prieto, C., et al. (2008) · The Astrophysical Journal · doi:10.1086/589678 · Cited by 566 · see citing works
Streams, Substructures, and the Early History of the Milky Way
Helmi, A. (2020) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-032620-021917 · Cited by 407 · see citing works
- Authors
- Gilmore, G., Wyse, R. F. G., & Jones, B. J.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 1995-03
- Volume
- 109
- Pages
- 1095
- ISSN
- 0004-6256 (ISSN-L)
- OpenAlex
- W2049200521
- Cited by
- 149
- References
- 0
- Citations by year
- 2026: 2 · 2025: 1 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 3 · 2017: 1 · 2016: 2 · 2014: 4 · 2013: 14 · 2012: 5
- FWCI
- 4.86
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- The Astronomical Journal (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Keywords
- thick disk, iron abundance, stellar populations, galaxy evolution
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